Mark D. Novara - 05 Mar 2026 Form 4 Insider Report for TANDEM DIABETES CARE INC (TNDM)

Signature
/s/ Shannon M. Hansen, Attorney-in-Fact for Mark D. Novara
Issuer symbol
TNDM
Transactions as of
05 Mar 2026
Net transactions value
-$45.62
Form type
4
Filing time
09 Mar 2026, 16:27:14 UTC
Previous filing
19 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Novara Mark David EVP & CHIEF COMMERCIAL OFFICER 12400 HIGH BLUFF DRIVE, SAN DIEGO /s/ Shannon M. Hansen, Attorney-in-Fact for Mark D. Novara 09 Mar 2026 0002000342

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TNDM Common Stock Sale $45.62 -2 -0.01% $22.81 35,969 05 Mar 2026 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The shares were sold, pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2025.